Can i just buy a new iphone 5c sim card?

Okay so i bought an iphone 5c on craigslist but i didn't realize it doesn't have a sim card and everyone says to go to sprint and tell them but there gon a need the phone info but it was originally not my phone so i have no info whatsoever so um kinda stuck right now and not sure what to do can i just buy a new sim card from like amazon or somewhere… Will it work. Right now my mom won't let me have service on it until we can figure out how to move it to metro pcs. So i'm just gonna use it as an ipod if i can. Also if you have any clue how to transfer it to metro pcs that would be helpfull too i'm kinda stuck right thanks in advance

Why don't people receive my texts with iPhone?

I have a iPhone and have done for years, but for the few months people have been saying they don't receive my texts. They do sometimes but 50% of the time they don't. Some are iPhone users and some aren't. It's a massive problem and I'm going to ditch Apple completely unless I find a solution. I've read things about iMessage not working so I've turned it off. But it's just my text messages don't get through. I get texts asking why I don't reply! Please someone help or tell me it's not just me, if it's an apple problem then they are gone, if it's my phone company then they are gone. I need to ditch whatever the problem is.

Transfer music from oplayer my documents, to my music on iphone?

My usb ports on my laptop are broken so can't transfer music the easy way. I downloaded Oplayer and went through all the steps, now I have a ton of music in my documents on Oplayer, I would like to now get them from Oplayer to my music on my iphone. How do I do this?

Can I get an iPhone without a plan?

My best friend has two iPhones, one that can call and do things out of Wi-Fi, but the other one acts like an iPod touch. It can't do things out of Wi-Fi. Where it usually says where her service should be, all it says is "No Service" then the Wi-Fi next to it. My mom will never let me get an iPhone, only because of the monthly cost. IIm 13, and I a small number of close friends, and they all have iPhones. Is there any way to get an iPhone without having to get a plan like my best friend?

How to change the apple ID on your iphone?

So I wanted to make a new one but I don't how to put it on my phone and then I don't how to put it on my laptop either. Also, when I do change this, when I connect my phone to my laptop and it starts syncing with itunes all the usual stuff, will anything get deleted since I created a new apple id?

How to get my iPhone case to be clear again?

I bought my iPhone 6 a clear case about 3 months ago and its gone completely this brown colour and its not clear and I've tried cleaning it. Any suggestions as to what i could do to restore to its original state?

Which iOS upgrade is the best for iphone 4s?

I'm deciding to buy iphone 4s but i have heard that after upgrade to iOS 8, 7 and even 6.1.1, its battery life becomes very short and problem of Wi-fi also. I'm not a heavy phone user and i like the design of iphone 4s. Please tell me the upgrade in which it will work fine. Should i just restrict to iOS 5?